Make ahead and freeze

Double ditto on any slow cooker recipe. Also most casseroles and lasagne. If you want to do some dishes at camp, you can pre-chop the meats and most firm vegetables and freeze them. Take a look in the freezer section of the grocery store and you'll see vegetables already frozen too, including chopped onions. You can also precook chicken and freeze it.

If you do a lot of RVing you might want to get a vacuum sealer for make ahead meals and your prepped vegetables and meats. The vacuum reduces the bulk of the package as a bonus which will let you store more.